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Detachable Drawing Pin / Drawing Pin

Detachable Drawing Pin

The traditional drawing pins that we used frequently had a problem. It is hard to detach them after the use. So, I make some minor changes to the traditional round drawing pins. I design two little grooves on the drawing pin. The improved drawing pin can be detached easily by fingers.

University

Beijing Institute of Technology,Zhuhai

Beijing Institute of Technology,Zhuhai
zhuhai, China